On Tue, 22 Aug 2006 21:14:30 +0100, Guy King wrote:



However, I'm sure most of them are still using gas hobs with no
appreciable ventilation in the kitchen at all.


Also in BS 5440-2 are the rules for FLUELESS appliances like hobs.
The rule is that no additional purpose provided ventilation is required
provided:
a) The room is 10m^3
b) There is a door, window or other opening direct to outside air.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html
Gas Fitting Standards Docs he http://www.makewrite.demon.co.uk/GasFittingStandards